Unless otherwise configured, the client libraries use Application Default Credentials to authenticate with Google Cloud Services. While this works for most applications, in some cases you may need to override this default. You can do so by providing the UnifiedCredentialsOption The following example shows how to explicitly load a service account key file:
[](std::string const& keyfile) {
auto is = std::ifstream(keyfile);
is.exceptions(std::ios::badbit); // Minimal error handling in examples
auto contents = std::string(std::istreambuf_iterator<char>(is.rdbuf()), {});
auto options =
google::cloud::Options{}.set<google::cloud::UnifiedCredentialsOption>(
google::cloud::MakeServiceAccountCredentials(contents));
return google::cloud::netapp_v1::NetAppClient(
google::cloud::netapp_v1::MakeNetAppConnection(options));
}
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-03-21 UTC."],[[["This document provides versioned documentation for the NetApp API, with the latest release being 2.37.0-rc and a full list of previous versions from 2.36.0 down to 2.16.0."],["The document explains how to override the default Application Default Credentials (ADC) used by client libraries for authentication with Google Cloud Services."],["Overriding default credentials can be achieved by utilizing the `UnifiedCredentialsOption`, as demonstrated with an example of loading a service account key file."],["The example provided is a basic illustration, and users are directed to the \"Best practices for managing service account keys\" guide for more detailed information."],["The document contains links to \"Authentication Components\" for more information on the factory functions to create `google::cloud::Credentials` objects."]]],[]]
